Flashcards in Vocab 2-3 Deck (9)
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1

Statistics

The branch of mathematics concerned with summarizing and making meaningful inferences from collections of data

2

Descriptive statistics

The listing and summarizing of data in a practical, efficient way

3

Frequency distribution

An arrangement of data that indicates how often a particular score or observation occurs

4

Normal curve

A graph of frequency distribution shaped like a symmetrical, bell shaped curve; a graph of normally distributed data

5

Central tendency

A number that describes the average score of distribution

6

Variability

A measure of speed, or spread of data

7

Standard deviation

A measure of variability that describes an average distance of every score from the mean

8

Correlation coefficient

Describes the direction and strength of the relationship between two sets of variables

9

Inferential statistics

Numerical methods used to determine wether research data support a hypothesis or wether results were due to chance